arXiv:2512.19629cs.ROcs.CV2025-12被引 10

让机器人看图导航时自带定位和环境感知,不依赖外部校准。

LoGoPlanner: Localization Grounded Navigation Policy with Metric-aware Visual Geometry

  • 用视觉几何模型隐式估计位置,避免依赖外部标定。
  • 通过历史视觉信息重建环境结构,提升避障精度。
  • 端到端设计减少误差积累,跨设备跨场景泛化能力强。

在非结构化环境中进行轨迹规划是移动机器人的一项基础且挑战性任务。传统模块化流程在感知、定位、建图和规划模块间存在延迟和误差累积问题。近期端到端学习方法直接将原始视觉观测映射为控制信号或轨迹,在开放世界中展现出更高性能与效率。然而,多数现有方法仍依赖独立的定位模块,需精确的传感器外参标定才能估计自身状态,限制了在不同机器人形态和环境间的泛化能力。本文提出LoGoPlanner,一种基于定位的端到端导航框架,通过:(1) 微调长时程视觉-几何骨干网络,以绝对度量尺度对预测结果进行定位,实现隐式状态估计;(2) 从历史观测中重建周围场景几何结构,提供密集且细粒度的环境感知以增强避障能力;(3) 将策略条件设置于上述辅助任务所生成的隐式几何信息上,从而降低误差传播。我们在仿真与真实场景中评估该方法,其全端到端设计有效减少了累积误差,度量感知的几何记忆提升了规划一致性与避障表现,相较基于理想定位的基线提升超过27.3%,并在不同机器人形态与环境间表现出强泛化能力。代码与模型已公开于 https://steinate.github.io/logoplanner.github.io。

原文摘要 · Abstract (English)

Trajectory planning in unstructured environments is a fundamental and challenging capability for mobile robots. Traditional modular pipelines suffer from latency and cascading errors across perception, localization, mapping, and planning modules. Recent end-to-end learning methods map raw visual observations directly to control signals or trajectories, promising greater performance and efficiency in open-world settings. However, most prior end-to-end approaches still rely on separate localization modules that depend on accurate sensor extrinsic calibration for self-state estimation, thereby limiting generalization across embodiments and environments. We introduce LoGoPlanner, a localization-grounded, end-to-end navigation framework that addresses these limitations by: (1) finetuning a long-horizon visual-geometry backbone to ground predictions with absolute metric scale, thereby providing implicit state estimation for accurate localization; (2) reconstructing surrounding scene geometry from historical observations to supply dense, fine-grained environmental awareness for reliable obstacle avoidance; and (3) conditioning the policy on implicit geometry bootstrapped by the aforementioned auxiliary tasks, thereby reducing error propagation. We evaluate LoGoPlanner in both simulation and real-world settings, where its fully end-to-end design reduces cumulative error while metric-aware geometry memory enhances planning consistency and obstacle avoidance, leading to more than a 27.3\% improvement over oracle-localization baselines and strong generalization across embodiments and environments. The code and models have been made publicly available on the https://steinate.github.io/logoplanner.github.io.

机器人导航端到端视觉定位几何建模

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